El Rastro, located between Plaza de Cascorro and Ronda de Toledo, is famous as Madrid's largest public market, where you can find a little bit of everything. Ranging from antiques and furniture, all the way to books and clothes. So be prepared to haggle a bit. There are also plenty of food stalls that will leave you hungry while shopping. Many lovers of second-hand products, including clothes and furniture, frequent this market, especially on Sundays.